Conveyer.



PATENTED NOV. 6, 1906.

W. J. PATTERSON.

CONVEYER.

APPLICATION FILED JULY13. 1906.

UNITED STA-T1318 PATENT OFFICE.

1VILLIAM J. PATTERSON, OF PITTSBURG, PENNSYLVANIA, ASS IGNOR TO HEYL 8: PATTERSON, INCORPORATED, OF PITTSBURG, PENNSYLVANIA, A CORPORATION OFVPENNSYLVANIA.

.CONVEYER.

Specification of Letters Patent...

Patented Nov. 6, 1906.

Application filed July 13, 1906. Serial No. 325,985.

to the lower or conveying strand in such manner that the material to be conveyed may be discharged from two or more hoppers and delivered 1n proper proportions to-the lower or conveying strand so that the conveyingstrand will be filled up by successive additions of the material delivered thereto by the upper strand. This feature is of particular use when the conditions are such that. it

would require an excessive height to conduct all of the material by gravity to one hopper. To these ends my invention comprises,

generally stated, a drag-conveyer so arranged in'connection with a plurality of discharginghoppers that the material discharged from said hopp below sald hoppers and through which the upper strand of the conveyer passes, so that the flights ol' the conve er will act to deliver the material from sai boxes to the lower strand of the conveyer in proper proportions, each successive box depositing itssupply of material upon the material deposited by the receding box until the receptacle inclosing lbwer strand of the conveyer ias been loaded to its full capacity.

In the drawings, Figure 1 is a side elevation,

artly in section, of a drag-conveyer with my invention'a iplied thereto. Fig. 2 is a crosssection on t e line 2 2, Fig. 1.

In the drawings the numeral 2 designates a suitable framework for supporting the conveyer 3. Sprocket-wheels 4, 5, and 6 are provided at the top and bottom of the frame 2 to receive the chains 7 01 the conveyer 3, all as in the ordinary manner. The conveyor may be driven by suitable power. The chains 7 are adapted to travel in the guidewayslO formed in the framework, and said chains are ers will be received in feed-boxes.

connected by the Hi hts 11 by means of which the material to e conveyed is carried through the receptacle 12 of the lower strand to the point of discharge at the top of the frame 2.

Located above the conveyer is the bin 14,

which has the discharge-hoppers 15, 16, and- 17 arranged 'at suitable intervals apart. The outlets of these discharge-hoppers 15, 16, and 17 communicate with the feed-boxes 18, 19, and 20, respectively. These feed-boxes are of such dimensions that when the coal in passin from the discharge-hopper to said boxes tahes its natural slope from the chute to the bottom plate ofthe feed-box the amount 01" coal or otherfmaterial within the feed-box will be the pro er proportion to be delivered to the receptac e 12 of the lower strand of the conveyer, so that as each teed-box discharges its contents into the receptacle 12 in succession said receptacle will be filled substan-' tially evenly to its full capacity.

The conveyer 2, with its flights 11 passes on its return through. the boxes .18, 19, and 20 and carries the material discharged from the hoppers 15, 16, and 17 from the teed-boxes so .as to drop into the receptacle 12 below.

When my improved conveyer is 111 use in connect on with the conveying of coal whlch has been crushed or passed through a screen and stored in the bin 14, the coal descends into the hoppers 1 5, 16, and 17, and the boxes 18, 19, and 20 being of the proper capacity the material discharged into the said boxes will remain therein until the conveyer is put in motion. Upon power being applied to drive the conveyer 3 the flights 11 in passing through the feed-boxes 18, 19, and 20 will dischar e the contents thereof so that the coal wilT drop into the receptacle 12 below, in which the lower strand of the conveyer travels. It is apparent that by regulating the capacity of t e feed-boxes 18, 19, and 20 the coal discharged from the box 18 will be sufficient to take up one-third of the capacity of the receptacle 12, while the coal from the box 19 will add a third more to the contents of the and the conveyers will carry up the quantity of coal made up of three successive additions from the boxes and Will discharge this coal at the upper end of the frame 2, whereupon veying of the material and attain the full capacity of the lower strand of the conveyer Without-passing the lower strand of the conveyer directly through a mass of material discharged'frorn one hop er, as has been the custom ordinarily hereto ore. By supplying the material to the lower strand of the conveyer by successive increments the strain on the eonveyer is relieved and at the same time the conveyor is Worked to its full capacity.

It is apparent that additional hoppers may be employed, as Well as feeding-boxes, or only two feeding-boxes may be employed, according to the required capacity of the plant.

What I claim is- In a conveyor comprising an upper and lower strand, a reoeptacle through which the lower strand passes, two or more feed-boxes in the path of the upper strand, and means for feeding the material to be conveyed by successive increments from said boxes to said receptacle below, whereby each successive box deposits its supply of material upon the material deposited by the preceding box until the said receptacle has been loaded at its discharge end to its full capacity.

in testimony whereof I, the said ZViLLiAM J. PA'rrnnsoN, have hereun to set my hand.

WILLIAM J. PATTERSON. Witnesses 'RoBERT C. Terran, J. R. KELLER. 

